Sosnitskii, S.P. (2005) “On the Lagrange Stability of Motion in the Three-Body Problem”, Ukrains’kyi Matematychnyi Zhurnal, 57(8), pp. 1137 – 1143. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3672 (Accessed: 10 April 2025).